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Seismic Performance of High-Rise Building using Outrigger and Diagrid Structural System

Journal: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) (Vol.10, No. 3)

Publication Date:

Authors : ; ;

Page : 7257-7266

Keywords : Outrigger; Diagrid; Lateral load resisting system; High-rise building & Response spectrum analysis;

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From ancient times humans were interested in building structures high, and this was grown by revaluation of technology in 19th century. After revaluation of technology peoples tried to move from urban lives towards cities for seeking jobs and life opportunities, in this way cities were over populated and the need for high-rise building was growing day by day because of lack of available land. But as height of structures increases lateral loads govern the design of structure. To tackle lateral loads in high-rise buildings there are number of lateral load resisting system without adding to the tonnage of the building or increase its plan dimension. Outrigger is one of the lateral load resisting structural systems that can be used. Outrigger system build by a core shear wall and belt truss and outrigger trusses in order to build the structure laterally stiff and increase its strength. Diagrid is another lateral load resisting that is newly developed mechanism. Diagrid system attracted the interest from both architects and designers because of its ability to resist lateral load and gravity load at the same time. Diagrid system gives a good aesthetic view to the building because of its unique geometry. In this paper a 24 storey building is considered using outrigger and diagrid system, and it is analyzed by response spectrum analysis, that is a linear dynamic analysis by the use of ETABS software. The objective of this paper is to do response spectrum analysis and compare performance of 6 different models with same height but different structure geometry. To find out the effect of different outrigger and diagrid on seismic performance of the structure.

Last modified: 2020-12-01 15:58:23